HowTo

Once the server is running you can make a GET request to the server and receive lookup results in JSON format.

require'json'require'open-uri'# Get the requesting user's IP address# In a Rails app, you can use: request.remote_ip# In a Sinatra app, you can use: request.ip# In a Rack app, you can use: @env['REMOTE_ADDR']
ip ="207.97.227.239"
data =JSON.load(open("http://my-geoip-service-app.herokuapp.com/#{ip}").read)
"You're in: #{data['city']}"